2004AJ....127..264B

Query : 2004AJ....127..264B

2004AJ....127..264B - Astron. J., 127, 264-278 (2004/January-0)

H I and CO in blue compact dwarf galaxies: Haro 2 and Haro 4.

BRAVO-ALFARO H., BRINKS E., BAKER A.J., WALTER F. and KUNTH D.

Abstract (from CDS):

We present Very Large Array H I imaging of two blue compact dwarf galaxies, Haro 2 and Haro 4, and of the spiral galaxy Haro 26, which is projected some 22' southwest of Haro 4. We also show a map of the CO(1-0) distribution of Haro 2 obtained with the Owens Valley Radio Observatory Millimeter Array, as well as derive an upper limit for CO(2-1) emission from Haro 4 obtained with the Caltech Submillimeter Observatory. The H I data of Haro 2 reveal that the kinematical major axis lies perpendicular to the photometric major axis, indicating that the atomic hydrogen rotates about the major axis of the galaxy. This confirms earlier indications based on CCD photometry that Haro 2 is a dust-lane dE rather than a dIrr. We propose that the present neutral and molecular ISM configuration is due to recent gas accretion or a merger. The H I distribution and dynamics of Haro 4 and the neighboring spiral Haro 26 suggest that they are currently undergoing a tidal interaction, reinforcing the notion that interactions play an important role in triggering the star formation witnessed in blue compact galaxies.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Dwarf - Galaxies: Individual: Name: Haro 2 - galaxies: individual (Haro 4) - galaxies: individual (Haro 26) - radio lines: galaxies

Nomenclature: Fig.3: [BBB2004] HI A (Nos A-C). Fig.5: [BBB2004] CO WW (Nos S, NW).

Simbad objects: 26

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Number of rows : 26
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 Z 383-20 H2G 00 27 51.551 +03 29 22.89   15.5       ~ 37 0
3 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
4 NGC 1376 GiG 03 37 05.9375589144 -05 02 33.518943636   12.9   11.96 12.7 ~ 95 0
5 SBSG 0335-052 AGN 03 37 44.06 -05 02 40.2     16.65     ~ 500 1
6 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
7 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 1004 1
8 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
9 NGC 3077 GiP 10 03 19.0965510921 +68 44 01.556166166 11.23 10.85 10.14 9.74   ~ 808 0
10 Z 266-47 AG? 10 29 05.325 +54 43 05.21   14.8       ~ 39 0
11 [BBB2004] CO NW MoC 10 30.9 +54 24           ~ 1 0
12 [BBB2004] HI A HI 10 32 27 +54 24.0           ~ 1 0
13 Z 266-55 AGN 10 32 31.956 +54 24 03.53 13.29 13.66 13.13 12.71 12.27 ~ 381 1
14 [BBB2004] CO S MoC 10 32 32.8 +54 23 50           ~ 1 0
15 [BBB2004] HI B HI 10 32 37 +54 24.0           ~ 1 0
16 [BBB2004] HI C HI 10 32 37 +54 24.7           ~ 2 1
17 NGC 3510 LSB 11 03 43.356 +28 53 13.58   13.6       ~ 199 0
18 Z 155-52 G 11 04 29.1495775872 +29 04 27.735069396   15.7 14.86     ~ 14 0
19 MCG+05-26-046 SBG 11 04 58.298 +29 08 16.54   15.5 15.29     ~ 228 0
20 LB 2136 Bla 11 53 24.46663994 +49 31 08.8301372   17.94 17.66     ~ 529 1
21 IC 745 AGN 11 54 12.2719925760 +00 08 11.823367524   14.59 14.19     ~ 139 1
22 NGC 4228 SBG 12 15 39.174 +36 19 36.80 10.63 10.30 9.93 9.74   ~ 1017 1
23 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
24 NGC 5253 rG 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1421 4
25 NAME NGC 5353 Radio Supernebula Cl* 13 39 56.007 -31 38 25.00           ~ 51 0
26 Mrk 324 AG? 23 26 32.783 +18 16 00.07   15.5       ~ 66 0

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